Ah man, I realized that I never responded to this thread. Back then, ARH wanted a car to test on but we couldn't figure that out and also there wasn't much interest so I never pursed this further. I also crashed my M coupe at the track shortly after this thread so was distracted by that.
pokeybritches thanks for the foresight on ECU changes.
Sergio19 I had almost no rasp with the DKF mid section, SS x pipe, and SS powerloop catback. Car sounded incredible.
And no I'm not banned. Still very much here but moved on to an E92 M3 track car. I do miss my crazy M coupe sometimes, though. It's now in good hands with an owner in the mid west who tracks it quite a bit